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Message-ID: <20220901131424.ovcsvffyjk7c5jqf@skbuf>
Date:   Thu, 1 Sep 2022 16:14:24 +0300
From:   Vladimir Oltean <olteanv@...il.com>
To:     Mattias Forsblad <mattias.forsblad@...il.com>
Cc:     netdev@...r.kernel.org, Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
Subject: Re: [PATCH net-next v2 2/3] dsa: mv88e6xxx: Add support for RMU in
 select switches

On Thu, Sep 01, 2022 at 11:05:37AM +0200, Mattias Forsblad wrote:
> Would this work on a system where there are multiple switches? I.e.
> 
> SOC <->port6 SC#1 <->port10 SC#2
> 
> Both have the same master interface (chan0) which gives the same
> cpu_dp->dsa_ptr->index but they have different upstream ports that should 
> be enabled for RMU.

I think the answer to that is dsa_towards_port(ds, cpu_dp->ds->index, cpu_dp->index);

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